This option replaces the Don't affect colors (adaptation only) parameter from previous V-Ray versions.Ĭolor mapping and gamma – Both color mapping and gamma are burned into the final image. Mode – Specifies if color mapping and gamma are burned into the final image. The subpixel color mapping option is incompatible with the adaptive lights and can lead to blocky artifacts due to the different sampling rate of the light sources in different cells of the light grid.Īffect background – When disabled, color mapping does not affect colors belonging to the background. For example, for a gamma value of 2.2, this value is 1/2.2, or 0.4545. Inverse gamma – The inverse of the gamma value when Type is set to Gamma correction or Intensity gamma. The default value is 1.0.īright multiplier – Specifies the multiplier applied to bright colors when Type is set to Linear multiply, Exponential, HSV exponential, or Intensity exponential. Values between 0.0 and 1.0 blend the two types.ĭark multiplier – Specifies the multiplier applied to dark colors when Type is set to Linear multiply, Exponential, HSV exponential, or Intensity exponential. If this value is 0.0, the result is the same as Exponential. Multiplier – A general multiplier for the colors before they are corrected when Type is set to Gamma correction, Intensity gamma, or Reinhard.īurn value – Available when Type is set to Reinhard. If this value is 1.0, the result is the same as setting Type to Linear multiply. The default settings for color mapping mean that V-Ray renders out the image in linear space (Reinhard color mapping with Burn value 1.0 produces a linear result). The degree to which one method or the other is applied to the image is specified by the Burn value parameter. Reinhard – A blend between Exponential and Linear multiply. Applies a gamma curve to the intensity of the colors instead of each channel (RGB) independently. Intensity gamma – This option is deprecated. Gamma correction – This option is deprecated. Intensity exponential – Similar to Exponential, but preserves the ratio of the RGB color components and only affects the intensity of the colors. HSV exponential – Similar to Exponential, but preserves the color hue and saturation instead of washing out the color towards white. This mode clamps colors so that no value exceeds 255, or 1 in floating point values. This can be useful in preventing burnouts in very bright areas (for example, around light sources). The default selection.Įxponential – Saturates the colors based on their brightness. Linear multiply – Simply multiplies the final image colors based on their brightness without applying any changes. For more information, please see the Color Mapping Types example below. Type – Sets the type of color transformation. The following parameters are visible from the Color Mapping rollout when set to the Default Render UI Mode. UI Path: ||Render Setup window|| > V-Ray tab > Color mapping rollout To ensure the most accurate results, it's best to leave the Color Mapping settings at their default values and perform artistic color transformations during post-production. This will also ensure repeatability, consistency, and a very accurate rendered solution. This approach corresponds to Linear Workflow.Ĭhanging the Color Mapping settings might be desirable for artistic purposes, but doing so will deviate from the linear correspondence between user actions and the rendered result, and will also veer away from physical accuracy in the scene. For example, doubling a light's intensity exactly doubles its contribution to the final pixel, and cutting a shader's light reflectance in half cuts its contribution to the final pixel in half. V-Ray default Color Mapping settings ensure a 1:1 mapping of all the user operations and the final result. Color mapping (sometimes also called tone mapping) dictates which color operations are performed between the user interface inputs and the values rendered and the way the rendered pixels are displayed through the VFB on the user monitor.
0 kommentar(er)
